Base | Representation |
---|---|
bin | 110101100000111000… |
… | …011100010111111100 |
3 | 12111022111002121122200 |
4 | 311200320130113330 |
5 | 1420134223440433 |
6 | 42221410511500 |
7 | 4102624542600 |
oct | 654070342774 |
9 | 174274077580 |
10 | 57459983868 |
11 | 22406732381 |
12 | b177295590 |
13 | 5559459a71 |
14 | 2ad13c7500 |
15 | 1764770613 |
hex | d60e1c5fc |
57459983868 has 108 divisors (see below), whose sum is σ = 169353973152. Its totient is φ = 16378830720.
The previous prime is 57459983857. The next prime is 57459983873. The reversal of 57459983868 is 86838995475.
57459983868 is a `hidden beast` number, since 5 + 7 + 459 + 98 + 3 + 86 + 8 = 666.
It is a super-2 number, since 2×574599838682 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 57459983796 and 57459983805.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 722496 + ... + 798072.
It is an arithmetic number, because the mean of its divisors is an integer number (1568092344).
Almost surely, 257459983868 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57459983868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84676986576).
57459983868 is an abundant number, since it is smaller than the sum of its proper divisors (111893989284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57459983868 is a wasteful number, since it uses less digits than its factorization.
57459983868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76032 (or 76020 counting only the distinct ones).
The product of its digits is 522547200, while the sum is 72.
The spelling of 57459983868 in words is "fifty-seven billion, four hundred fifty-nine million, nine hundred eighty-three thousand, eight hundred sixty-eight".
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